You have reached family level. The family Sciuridae includes the red squirrel, and every other kind of squirrel - other tree squirrels, ground squirrels and flying squirrels. We have cut out all the other types of rodents like mice and rats. There are probably around 270 species of squirrel alive today.
Click on another of the groupings to the left of the illustration or return to the Main page to learn more about classification.